I spoke with Notus again, and in my task list (and in Journal) I have a record "enter Artifice". The task notes instruct me to talk to the guards to gain entry. Fine. I went to Artifice, and tried to talk to the guards, but they ignore me. There is the Welcomer guy in front of the entrance, who talks to me and instructs to go in. But the entrance does not work for me --- it is like trying to enter a solid wall. Did I miss anything? (I did this quest up to the entrance way before, but I spoke to Notus again, as instructed.) Another possible thing: I don't have a bonesteel dagger on me. Do I need it? Do I need any other object I forgot since last time? Thank you in advance.